Figure 3

Fundus images with green (A) and red (B) optimized illumination. Color fundus images (A3 and B3) merged from corresponding green (A1 and A2) and red (B1 and B2) fundus images. Color balanced fundus image (C) which is merging of (A1) and (B2) fundus images. Vessel visibility enhancement of color fundus image from region I (D1), II (D2), III (D3). Each orange, green, and red line indicate the vessel intensity profile from color balanced fundus image (C), 530 nm optimized fundus image (A3), and 625 nm optimized fundus image (B3), respectively.